Data processing: financial – business practice – management – or co – Business processing using cryptography – Usage protection of distributed data files
Reexamination Certificate
2007-11-20
2007-11-20
Worjloh, Jalatee (Department: 3621)
Data processing: financial, business practice, management, or co
Business processing using cryptography
Usage protection of distributed data files
C705S057000, C705S058000, C705S051000, C726S030000, C380S201000, C380S202000, C380S203000
Reexamination Certificate
active
10081173
ABSTRACT:
A method, apparatus and system for securely providing material to a licensee of the material are described. In each, at least one license key is provided, preferably along with a license including usage rights for requested content or material to the licensee. The material requested and licensed by the licensee is provided to the licensee encrypted with at least one content key. To achieve a second-level of security, the at least one content key is provided to the licensee encrypted with the at least one license key so that both the at least one content key and the at least one license key are necessary for the licensee to decrypt and use the encrypted material.
REFERENCES:
patent: 4531020 (1985-07-01), Wechselberger
patent: 5715403 (1998-02-01), Stefik
patent: 6178242 (2001-01-01), Tsuria
patent: 6202056 (2001-03-01), Nuttall
patent: 6792280 (2004-09-01), Hori et al.
patent: 6865555 (2005-03-01), Novak
patent: 6898708 (2005-05-01), Hori et al.
patent: 6901385 (2005-05-01), Okamoto et al.
patent: 7113926 (2006-09-01), Suzuki
patent: 2001/0053222 (2001-12-01), Wakao et al.
patent: 2003/0023564 (2003-01-01), Padhye et al.
patent: 2003/0046238 (2003-03-01), Nonaka et al.
patent: 2004/0030656 (2004-02-01), Kambayashi et al.
patent: 2005/0021467 (2005-01-01), Franzdonk
patent: 2005/0273862 (2005-12-01), Benaloh et al.
patent: 0 969 668 (2000-01-01), None
patent: 1 120 967 (2001-08-01), None
patent: 1 130 492 (2001-09-01), None
patent: 2000-083022 (2000-03-01), None
patent: 2000-083233 (2000-03-01), None
patent: 2001-175606 (2001-06-01), None
Garnett, Nic “Digital Rights Management, Copyright, and Napster”, 2001, ACM Press, vol. 2, Issue 2, pp. 1-5.
Schneier, B., “Applied Cryptography, Second Edition”, Applied Cryptography. Protocols, Algorithms, And Source Code In C, New York, John Wiley & Sons, U.S., 1996, pp. 31-42.
Schneier, B., “Applied Cryptography, Second Edition”, Applied Cryptography. Protocols, Algorithms, And Source Code In C, New York, John Wiley & Sons, U.S., 1996, pp. 176-177.
Schneier, B., “Applied Cryptography, Lifetime Of Keys”, Applied Cryptography. Protocols, Algorithms, And Source Code In C, New York, John Wiley & Sons, U.S., 1996, pp. 183-184.
ISP/IEC JTC1/SC29/WG11 N3943 : “Intellectual Property Management and Protection in MPEG Standards”, Jan. 2001, Retrieved from the Internet : <URL :http://www.cselt.it/mpeg/standards/ipmp/> retrieved on Sep. 24, 2001, 10 pages.
PCT Search Report for PCT/US 02/33072 mailed Jun. 4, 2003, 3 pages.
Macrovision Corporation
Okumoto Victor H.
Worjloh Jalatee
LandOfFree
Method, apparatus and system for securely providing material... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method, apparatus and system for securely providing material..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method, apparatus and system for securely providing material... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3830779